TW200608775A - Method and system for enhancing the sharpness of a video signal - Google Patents
Method and system for enhancing the sharpness of a video signalInfo
- Publication number
- TW200608775A TW200608775A TW094116510A TW94116510A TW200608775A TW 200608775 A TW200608775 A TW 200608775A TW 094116510 A TW094116510 A TW 094116510A TW 94116510 A TW94116510 A TW 94116510A TW 200608775 A TW200608775 A TW 200608775A
- Authority
- TW
- Taiwan
- Prior art keywords
- images
- sharpness
- enhancing
- video signal
- generating
- Prior art date
Links
- 230000002708 enhancing effect Effects 0.000 title abstract 2
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/73—Deblurring; Sharpening
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/142—Edging; Contouring
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/20—Circuitry for controlling amplitude response
- H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/20—Circuitry for controlling amplitude response
- H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
- H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20004—Adaptive image processing
- G06T2207/20008—Globally adaptive
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Image Processing (AREA)
- Picture Signal Circuits (AREA)
- Studio Circuits (AREA)
- Facsimile Image Signal Circuits (AREA)
Abstract
The invention relates to a method and a system for modifying input images (101) for generating output images (102), said method comprising the steps of: splitting (103) said input images (101) into coarse images (104) and fine images (105), enhancing (106) the sharpness of said coarse images (104) for generating intermediate sharpness-enhanced images (107), combining (108) said intermediate sharpness-enhanced images (107) and said fine images (105) for generating said output images (102).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04300301 | 2004-05-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW200608775A true TW200608775A (en) | 2006-03-01 |
Family
ID=34968342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW094116510A TW200608775A (en) | 2004-05-25 | 2005-05-20 | Method and system for enhancing the sharpness of a video signal |
Country Status (7)
Country | Link |
---|---|
US (1) | US20080266307A1 (en) |
EP (1) | EP1754369A1 (en) |
JP (1) | JP2008500757A (en) |
KR (1) | KR20070029176A (en) |
CN (1) | CN100473111C (en) |
TW (1) | TW200608775A (en) |
WO (1) | WO2005117414A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7852412B1 (en) * | 2006-02-27 | 2010-12-14 | Nvidia Corporation | Video noise level detection |
JP2009531933A (en) * | 2006-03-29 | 2009-09-03 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Method and system for improving display quality of image signal |
US7952647B2 (en) * | 2006-12-27 | 2011-05-31 | Intel Corporation | Method and apparatus of content adaptive detailing filtering for digital pictures |
JP5050637B2 (en) * | 2007-05-11 | 2012-10-17 | ソニー株式会社 | VIDEO SIGNAL PROCESSING DEVICE, VIDEO SIGNAL PROCESSING METHOD, VIDEO SIGNAL PROCESSING METHOD PROGRAM, AND RECORDING MEDIUM CONTAINING VIDEO SIGNAL PROCESSING METHOD PROGRAM |
CN101802866B (en) | 2007-07-09 | 2012-12-12 | 前视红外***公司 | Method of processing an infrared image, infrared image capturing system and computer readable medium |
JP4453777B2 (en) * | 2008-07-15 | 2010-04-21 | 日本ビクター株式会社 | Image quality improving apparatus and method |
JP5320538B1 (en) * | 2012-08-09 | 2013-10-23 | 清一 合志 | Image enhancement device and image enhancement method |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3629409C2 (en) * | 1986-08-29 | 1994-02-17 | Agfa Gevaert Ag | Method and device for contrast evaluation in electronic image processing |
US5038388A (en) * | 1989-05-15 | 1991-08-06 | Polaroid Corporation | Method for adaptively sharpening electronic images |
JPH0856316A (en) * | 1994-06-09 | 1996-02-27 | Sony Corp | Image processor |
KR0176601B1 (en) * | 1996-05-21 | 1999-05-01 | 김광호 | Picture quality improving method & circuit using low-filtering and histogram equalization |
US5978518A (en) * | 1997-02-25 | 1999-11-02 | Eastman Kodak Company | Image enhancement in digital image processing |
JPH114363A (en) * | 1997-06-11 | 1999-01-06 | Fujitsu General Ltd | Contour correction circuit |
US7161633B2 (en) * | 2001-01-10 | 2007-01-09 | Koninklijke Philips Electronics N.V. | Apparatus and method for providing a usefulness metric based on coding information for video enhancement |
US6950561B2 (en) * | 2001-01-10 | 2005-09-27 | Koninklijke Philips Electronics N.V. | Method and system for sharpness enhancement for coded video |
WO2002084997A1 (en) * | 2001-04-11 | 2002-10-24 | Sony Corporation | Contour-emphasizing circuit |
-
2005
- 2005-05-17 WO PCT/IB2005/051590 patent/WO2005117414A1/en not_active Application Discontinuation
- 2005-05-17 JP JP2007514230A patent/JP2008500757A/en active Pending
- 2005-05-17 US US11/569,169 patent/US20080266307A1/en not_active Abandoned
- 2005-05-17 EP EP05738314A patent/EP1754369A1/en not_active Withdrawn
- 2005-05-17 CN CNB2005800166561A patent/CN100473111C/en not_active Expired - Fee Related
- 2005-05-17 KR KR1020067024669A patent/KR20070029176A/en not_active Application Discontinuation
- 2005-05-20 TW TW094116510A patent/TW200608775A/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP1754369A1 (en) | 2007-02-21 |
CN101019414A (en) | 2007-08-15 |
WO2005117414A1 (en) | 2005-12-08 |
CN100473111C (en) | 2009-03-25 |
KR20070029176A (en) | 2007-03-13 |
JP2008500757A (en) | 2008-01-10 |
US20080266307A1 (en) | 2008-10-30 |
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